Maintenance - Heatrae Sadia UTC 99 Fitting Instructions And User Manual

5.4 Setting the 'hot' position:
Rotate the thermostat knob to mid way through the hot graduated
range (red graphic). Follow the procedure in 5.3, however in this case,
the knob should be held in the 'hot' position previously set. When the
terminal cover has been re-fitted, the thermostat will be locked in the
'hot' position.
5.5 SYSTEM MALFUNCTION
1. Explain how to isolate electrical and water supplies incase of a fault.
2. Explain that a qualified plumber and / or electrician should be contacted
if there is a fault.
3. Explain how to identify / check basic faults.
5.6 SYSTEM MAINTENANCE
Explain the necessity to carry out regular maintenance of the water heater to
ensure it's continued safe and efficient operation.
5.7 LITERATURE
Hand over the Installation and user instructions.

6.0 MAINTENANCE

WARNING: Disconnect from all electrical supplies before beginning any work
on the water heater. Water contained in the water heater may be very hot!
To ensure the continued safe and efficient operation of the water heater it
should be regularly maintained.
In hard water areas the water heater will require periodic descaling.
Maintenance and servicing should be carried out by a competent person
and any replacement parts used should be authorized Heatrae Sadia spare
parts.
6.1 RE SETTING THE THERMAL CUTOUT
6.1.1 Switch off and disconnect the electrical supply, turn off the water supply
to the unit and remove the terminal cover.
6.1.2 Press the thermal cut out button (see Figure 05).
NOTE: If the thermal cut out continues to operate, check the operation of the
thermostat and the element plate assembly.
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